Recording narration manually using professional voice actors.
High-budget productions, emotion-heavy performances, or brand voice requirements.
Time-consuming, high cost, and difficult to revise after recording.
Instant regeneration, fully local workflow, and tight synchronization with subtitles.
Using online TTS platforms to generate narration audio.
Non-sensitive content, short-form narration, or occasional usage.
Requires uploading text, usage-based pricing, and network latency.
Offline-first, no data upload, and predictable, deterministic output.
Editing narration audio manually from pre-recorded sources.
Existing narration assets and minor timing adjustments.
Poor scalability and difficult to maintain sync after text changes.
Automatically regenerates audio from updated text and maintains alignment with timeline changes.